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Sandipan Haldar

@sandipanhaldar

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AI Consultant at OTTERCIRCUIT building production AI agents, including a support system serving 20,000+ users monthly.

India

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At OTTERCIRCUIT, I designed and shipped a multi-region AI support chat system for Slotsense.ai that serves 20,000+ users per month. Its hierarchical RAG pipeline and parallel orchestration reduced P50 latency by 38% and P95 latency by 34%, with time to first token under two seconds.

At HRS Group, I architected production AI systems for travel program management, hotel entity resolution, and fraud detection. I also built HICA and MCP Auth Guard, open-source projects for customizable AI agents and policy-driven access control.

Experience

Work history, roles, and key accomplishments

Current

AI Consultant

Current

OTTERCIRCUIT

Oct 2024 - Present (1 year 11 months)

Designed and shipped multi-region AI support chat systems, real-time voice assessment platforms, and secure MCP infrastructure for production AI agents. Led development of AI-assisted analytics and chat systems for major clients.

RAG Qdrant LangGraph Celery Amazon EKS Terraform ArgoCD Clickhouse Langfuse Grafana MCP BigQuery GCP LiveKit Next.js Supabase Vercel Python TypeScript

ML Engineer

HRS Group

Aug 2021 - Jul 2024 (2 years 11 months)

Architected production agentic systems for travel program management, built vector search for hotel entity resolution, and developed fraud detection systems. Achieved significant improvements in automation, retrieval speed, and fraud reduction.

RAG LangGraph Qdrant Pgvector PEFT LoRAs Sagemaker Lambda API Gateway Python PySpark Airflow DBT Terraform Docker Redis PostgreSQL Clickhouse PyTorch scikit learn

Data Scientist

Param.ai

Nov 2019 - Aug 2020 (9 months)

Built AI-powered candidate retrieval and matching systems using semantic search and NLP pipelines. Deployed production ML recommendation systems and conversational AI agents.